Sub-Zero Designer Wine (IW) Code 35-1-33: zone 1 fan speed below range

What 35-1-33 means

On IW-series Designer Wine Storage, such as the IW-18 or IW-30CI, code 35-1-33 means the zone 1 fan speed is set too low. The control expects the zone 1 fan to run within a certain speed range; here the setting it is working with has dropped below that range. Air movement in zone 1 slows, temperatures there can lag, and the panel shows 35 1 33.

Common causes of 35-1-33

A fan speed setting for zone 1 that has fallen below the allowed range
A zone 1 fan motor that does not follow the speed command
Ice or an obstruction slowing the zone 1 fan
A control board issue affecting fan speed

✓ One safe check you can try

1. Clear any bottles blocking the zone 1 air vents. 2. Look for frost buildup at the back wall of zone 1. 3. Turn the breaker off, wait a minute and switch it on. 4. Schedule service if 35-1-33 returns. 5. Avoid scraping frost yourself; even a plastic tool can crack the coil fins.

! Why to stop there

Fan speed settings live in the control, which needs service-level access
Confirming actual fan speed takes test equipment
Clearing ice behind covers risks damaging the coil

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Wine Storage codes

90-H-83Sub-Zero Designer Wine (IW) Code 90-H-83: bad data from the high voltage micro 90-H-84Sub-Zero Designer Wine (IW) Code 90-H-84: high voltage micro failed to initialize 95-1-00Sub-Zero Designer Wine (IW) Code 95-1-00: zone 1 door open too long EC 11Sub-Zero 400 Series Wine Code EC 11: upper cabinet too cold EC 13Sub-Zero 400 Series Wine Code EC 13: lower cabinet cold alarm EC 15Sub-Zero 400 Series Wine Code EC 15: unit not cooling Service flashingSub-Zero 400 Series Wine "Service" Flashing: compressor ran too long 45-2-00Sub-Zero Designer Wine (IW) Code 45-2-00: zone 2 lights not drawing power

35-1-3335-1-33 questions

Does 35-1-33 mean the fan is broken?

Not necessarily. It says the zone 1 fan speed setting is below the range the control accepts. The fan may be working but not at the speed the control needs.

Will zone 1 still cool?

Usually, but more slowly, because less air passes over the coil. You may notice zone 1 taking longer to recover after the door opens. Keep the door closed as much as you can meanwhile.

How do you correct a fan speed code?

We check the fan, its wiring and the control settings, then correct or replace what is out of range. Pricing is given in writing before any work, and repairs carry a 30-day warranty.